My wife just got a Dell Inspiron 5160 with Windows XP Home SP2 on it.\n\nThe thing is, when windows sends it to sleep OR I press the Fn key and the\nEsc key (Which has the blue letters 'standby' on it), or I choose standby\nfrom the windows menu - it goes to sleep just fine, but I can't make it wake\nup by pressing the power button. Holding the power button down for a couple\nof seconds fails as well. Holding the power button down for like 5 seconds\nshuts the computer off!!!\n\nAny ideas what we're doing wrong here???\n\nAlso tried pressing keys, moving and clicking the mouse, and pressing the Fn\nkey plus the LCD/CRT function key and no go....\n\nIt does have a keyboard and mouse plugged in via the USB port - should we\njust try it with no peripherals???